The FAST feed source receiver, as a core component of the FAST feed source module of the Chinese celestial eye, plays a role in receiving electromagnetic wave signals emitted by celestial bodies and can be called the "pupil of the celestial eye". To ensure the safe and efficient operation and disassembly of the feed source receiver, a FAST Tianyan feed source receiver operation and maintenance robot has been designed to solve problems such as limited installation space, numerous disassembly and assembly bolts, low disassembly and assembly efficiency, and transportation difficulties in the feed source compartment. This robot is composed of a heavy-duty omnidirectional AGV system, a flexible docking platform, an intelligent robotic arm, etc. It integrates multiple functions such as positioning, recognition, disassembly, and transportation.The FAST Tianyan feed source receiver operation and maintenance robot applies technologies such as "laser+inertia+vision" combined navigation, vision based positioning and orientation, dual hydraulic synchronization control, real-time estimation of dynamic contact force between the end of the robotic arm and the bolt, and flexible docking control based on force feedback. With a heavy-duty omnidirectional AGV, it is equipped with a flexible docking platform and four sets of intelligent robotic arms, which can automatically transport the robot to the installation position and carry equipment weighing up to 3 tons. It automatically identifies the path on narrow, curved, and steep roads, and travels back and forth between the warehouse and the feed source compartment at a distance of 5 kilometers. The end of the robotic arm is automatically planned with image recognition based on the current posture of the bolts, as well as scheduling and management between multiple robotic arms. It can accurately identify the specifications and positions of each screw hole and guide the end torque gun to screw in or remove bolts of different specifications.In terms of formal beauty, it has a unified design language. The overall shape starts with cutting language, retaining the industrial angular language to emphasize its industrial feel as equipment. The overall shape is simple and large, and the color scheme uses overall white with blue and red embellishments, highlighting its technological beauty as a major country's heavy equipment operation and maintenance robot; Functionally, the additional distribution boxes and operating equipment of the traditional scheme are reintegrated into the heavy-duty AGV, fully retaining the feasibility of the original scheme. At the same time, the design is more intensive, the functional zoning is more reasonable, and the operation is also more convenient; In terms of materials, this design applies high-strength metal alloys, engineering plastics, and carbon fiber composite materials. The allowable load for heavy-duty AGVs is ≥ 6 tons, and the allowable load for flexible docking platforms is ≥ 3 tons, ensuring safety and durability during disassembly and assembly.The emergence and intervention of FAST Tianyan feed source receiver operation and maintenance robots have changed the history of manual disassembly in the past, and shortened the dismantling time of feed source receivers from 3 days to 10 hours. This marks the entry of China's Tianyan into the era of intelligent robot operation and maintenance, expanding the operation and maintenance robot market in the field of major national infrastructure equipment, and providing assistance for the development of the robotics industry.In terms of safety, a heavy-duty omnidirectional AGV system is adopted to ensure that the robot can accurately locate and move within the limited space of the feed source compartment, avoiding collisions and misoperations. It is also equipped with sensors and detection systems for real-time detection of the working environment and equipment status, and protective designs are adopted in the mechanical arm and key positions to reduce potential threats to operators. At the same time, it has an emergency stop function to ensure the safety of personnel and equipment in the face of emergencies; In terms of health, this robot can replace manual labor for heavy, repetitive, and high-risk disassembly and transportation work, reduce the need for manual labor to work for long periods of time in narrow spaces, and improve the working environment; In terms of usability, operation and maintenance robots are easy to operate, highly automated, and able to use different operational needs and work environments.